Electrochemical-based heavy metal detection device, control method thereof, and storage medium

Abstract

The application belongs to the technical field of detection, and discloses a heavy metal detection device based on electrochemistry, a control method thereof and a computer readable storage medium. The detection device comprises a first bearing mechanism, a second bearing mechanism, a first driving mechanism, a second driving mechanism and a clamping and conveying device. The first bearing mechanism comprises a first bearing component with a plurality of first fixed grooves for bearing sample containers. The second bearing mechanism comprises a second bearing component with a plurality of second fixed grooves for bearing electrodes. The first driving mechanism is used to drive the first bearing component to move, so that the first fixed groove containing the target sample container moves to a reaction position. The second driving mechanism is used to drive the second bearing component to move, so that the second fixed groove containing the target electrode moves to an electrode position. The clamping and conveying device is used to clamp the electrode and reciprocally convey the electrode between the electrode position and the reaction position. The detection device provided by the application has high automation performance.

Description

Technical Field

[0001] This invention relates to the field of detection technology, and in particular to an electrochemical-based heavy metal detection device and its control method, as well as a computer-readable storage medium. Background Technology

[0002] Heavy metal pollution has become one of the most serious environmental problems. Furthermore, its high bioaccumulation potential allows it to accumulate in organisms through the food chain, posing even greater risks to the environment and human health. Therefore, rapid and reliable detection of trace heavy metal ions is of paramount importance in food, pharmaceutical, and environmental monitoring.

[0003] Currently, there are various methods for detecting the concentration of heavy metal ions. Commonly used methods include atomic absorption spectrometry, spectrophotometry, and electrochemical analysis. Among these, electrochemical analysis is simpler to operate and faster than atomic absorption spectrometry, and its hardware does not require an ignition reaction chamber or lamp source switching. Compared to spectrophotometry, it has a wider dynamic range, compensating for the limitations of spectrophotometry, such as decreased linearity at low and high ion concentrations leading to increased error, and susceptibility to the influence of sample color and turbidity. However, in these technologies, equipment using electrochemical methods for heavy metal ion concentration detection lacks sufficient automation and cannot automatically and continuously analyze multiple samples. Summary of the Invention

[0004] The purpose of this invention is to provide an electrochemical-based heavy metal detection device, which aims to solve the technical problem of low automation performance of existing devices that use electrochemical methods to detect heavy metal ion concentration.

[0005] To achieve the above objectives, the present invention provides a solution: an electrochemical-based heavy metal detection device, comprising:

[0006] A first support mechanism, the first support mechanism including a first support component, the first support component having a plurality of first fixing grooves for supporting sample containers;

[0007] The second support mechanism includes a second support component, which has a plurality of second fixing grooves for supporting electrodes.

[0008] A first driving mechanism is used to drive the first supporting component to move, so that the first fixed groove containing the target sample container moves to the reaction position;

[0009] The second driving mechanism is used to drive the second bearing component to move so that the second fixing groove containing the target electrode moves to the electrode position;

[0010] A clamping and conveying device is used to clamp and reciprocally convey the electrode between the electrode station and the reaction station.

[0011] A second object of the present application is to provide a control method of the electrochemical-based heavy metal detection device as described above, comprising:

[0012] Step 1: Obtain test configuration data, which includes electrode information, sample container information, sample detection order information, and sample required electrode type and quantity information.

[0013] Step 2: According to the sample container information and the sample detection order information, control the first driving mechanism to drive the first bearing component to move, and convey the first fixed slot containing the target sample container to the reaction station.

[0014] Step 3: According to the electrode information and the sample required electrode type and quantity information, control the second driving mechanism to drive the second bearing component to move, and convey the second fixed slot containing the target electrode to the electrode station.

[0015] Step 4: Control the clamping and conveying device to clamp the electrode from the electrode station and convey the clamped electrode to the reaction station.

[0016] Step 5: According to the sample required electrode quantity information, repeat step 4.

[0017] Step 6: After the electrochemical reaction is completed, control the clamping and conveying device to clamp the electrode from the reaction station and convey the electrode to the electrode station.

[0018] Step 7: According to the sample quantity and detection order information, repeat steps 2 to 6.

[0019] A third object of the present application is to provide a computer-readable storage medium.

[0020] The application provides an electrochemical heavy metal detection device and a control method and a computer readable storage medium thereof. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of the drawings shown.

[0022] Figure 1 is a composition diagram of the electrochemical heavy metal detection device provided by the embodiment of the present application;

[0023] Figure 2 is an assembly structure schematic diagram of the electrochemical heavy metal detection device, the electrode, the reagent container and the sample container from one perspective provided by the embodiment of the present application;

[0024] Figure 3 is an assembly structure schematic diagram of the electrochemical heavy metal detection device, the electrode, the reagent container and the sample container from another perspective provided by the embodiment of the present application;

[0025] Figure 4 is a structure schematic diagram of the clamping conveying device provided by the embodiment of the present application;

[0026] Figure 5is the assembly view of the electrode, the reagent container and the sample container when the telescopic rod is in the first extended state of the electrochemical heavy metal detection device provided by the embodiment of the present application;

[0027] Figure 6 is the assembly view of the electrode, the reagent container and the sample container when the telescopic rod is in the first extended state of the electrochemical heavy metal detection device provided by the embodiment of the present application;

[0028] Figure 7 is the assembly structure schematic view of the second bearing part, the electrode and the reagent container provided by the embodiment of the present application;

[0029] Figure 8 is Figure 7 is the local enlarged view of A in the figure;

[0030] Figure 9 is the structure schematic view of the electrode positioning member provided by the embodiment of the present application;

[0031] Figure 10 is the assembly view of the electrode, the reagent container and the sample container when the telescopic rod is in the first extended state of the electrochemical heavy metal detection device provided by the embodiment of the present application.

[0032] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directionality indications also change accordingly.

[0035] It should also be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or can have a middle element.

[0036] In addition, the description related to "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0037] Reaction site, refers to the reaction position of the heavy metal detection equipment based on electrochemical sample heavy metal detection.

[0038] Electrode site, refers to a certain position in the heavy metal detection equipment for the electrode clamping jaw assembly to clamp the electrode.

[0039] Clamping site, refers to a certain position in the heavy metal detection equipment where the electrode positioning member clamps and fixes the electrode, and the clamped electrode extends into the sample in the reaction site.

[0040] Avoidance site, refers to a certain position in the heavy metal detection equipment where the electrode positioning member is located without affecting the operation of other components, especially the jaw assembly.

[0041] Reagent site, refers to a certain position in the heavy metal detection equipment where the reagent is taken by the sample needle.

[0042] Reagent adding site, refers to a certain position in the heavy metal detection equipment where the sample needle adds reagent to the sample container.

[0043] Sample needle site, is a certain position in the heavy metal detection equipment where the sample needle is placed when it is in an inactive state.

[0044] Cleaning site, refers to a certain position in the heavy metal detection equipment where the components that need to be cleaned, such as sample needle and electrode, are cleaned.

[0045] First initial position, refers to the original position of the jaw assembly when the telescopic rod is in a retracted state in the heavy metal detection equipment, and the jaw assembly is in the original position without affecting the movement of other components in the detection equipment.

[0046] Second initial position, refers to the original position of the jaw assembly when the telescopic rod is in a first extended state in the heavy metal detection equipment, and the jaw assembly is in the original position without affecting the movement of other components in the detection equipment.

[0047] The third initial position refers to an original position of the clamping jaw assembly when the telescopic rod in the heavy metal detection equipment is in the second extended state. When the clamping jaw assembly is in the original position, the movement of other components in the detection equipment is not affected.

[0048] As shown in Figures 1 to 3 The heavy metal detection equipment 100 provided by the embodiment of the present application is based on electrochemistry, and comprises a first bearing mechanism 10, a second bearing mechanism 20, a first driving mechanism 30, a second driving mechanism 40 and a clamping and conveying device 50. The first bearing mechanism 10 comprises a first bearing component 11, and the first bearing component 11 has a plurality of first fixed grooves 111 for bearing sample containers 200. The second bearing mechanism 20 comprises a second bearing component 21, and the second bearing component 21 has a plurality of second fixed grooves 211 for bearing electrodes 300. The first driving mechanism 30 is used to drive the first bearing component 11 to move, so that the first fixed groove 111 in which the target sample container 200 is accommodated moves to a reaction position. The second driving mechanism 40 is used to drive the second bearing component 21 to move, so that the second fixed groove 211 in which the target electrode 300 is accommodated moves to an electrode position. The clamping and conveying device 50 is used to clamp the electrode 300 and convey the electrode 300 reciprocally at least between the electrode position and the reaction position.

[0049] According to the technical scheme, the first bearing part 11 is provided with a plurality of first fixed grooves 111, each of which bears a sample container 200, so that the first bearing part 11 can bear a plurality of sample containers 200, each of which can bear a sample, and thus the first bearing part 11 can bear a plurality of samples. The first driving mechanism 30 is arranged to drive the first bearing part 11 to move, so that the first fixed groove 111 located thereon moves, thereby driving the sample container 200 borne in the first fixed groove 111 to move, and further realizing the movement of the target sample container 200 to the reaction position, i.e., the movement of the target sample to the reaction position. Since the first bearing part 11 can bear a plurality of samples, the first driving mechanism 30 can transport a plurality of samples to the reaction position respectively. The second bearing part 21 is provided with a plurality of second fixed grooves 211, each of which bears an electrode 300, so that the second bearing part 21 can bear a plurality of electrodes 300, wherein the types of the plurality of electrodes 300 can be the same, different, or partially the same and partially different. The second driving mechanism 40 is arranged to drive the second bearing part 21 to move, so that the second fixed groove 211 located thereon moves, thereby driving the electrode 300 borne in the second fixed groove 211 to move, and further realizing the movement of the electrode 300 to the electrode position. Since the second bearing part 21 can bear a plurality of electrodes 300, the second driving mechanism 40 can transport a plurality of electrodes 300 to the electrode position according to the test requirement. The clamping and conveying device 50 is arranged to convey the electrode 300 between the electrode position and the reaction position, so that the electrode 300 can be conveyed from the electrode position to the reaction position when the sample is detected based on electrochemistry, and the electrode 300 can be conveyed from the reaction position to the electrode position when the detection is not performed.

[0050] Using the electrochemical-based heavy metal detection device 100 provided in this embodiment, when detecting a sample, the sample container 200 carrying the sample can be transported to the reaction site by the first driving mechanism 30, the required electrode 300 can be transported to the electrode position by the second driving mechanism 40, and the electrode 300 can be transported from the electrode position to the reaction site by the clamping and transporting device 50, thereby realizing the detection of the sample. When multiple electrodes 300 are required to detect the sample, the required first electrode 300 can be transported to the electrode position by the second driving mechanism 40 and from the electrode position to the reaction site by the clamping and transporting device 50. After the reaction site is reached, the next electrode 300 is transported until all the required electrodes 300 are transported to the reaction site before detection. When at least two samples are being tested, after the previous sample is tested and all electrodes 300 are transported back to the second carrier component 21 by the clamping and transporting device 50, the sample container 200 carrying the next sample is driven by the first driving mechanism 30 to be transported to the reaction site. The second driving mechanism 40 then transports the required electrodes 300 for that sample to the electrode position, and the clamping and transporting device 50 transports the electrodes 300 to the reaction site, thereby enabling the detection of the next sample. Therefore, the electrochemical-based heavy metal detection device 100 provided in this embodiment can not only automatically detect heavy metal ions in a single sample based on electrochemistry, but also automatically detect heavy metal ions in multiple samples based on electrochemistry. Thus, the electrochemical-based heavy metal detection device 100 provided in this embodiment has high automation performance.

[0051] In one implementation, the sample container 200 is a beaker. In specific applications, the sample container 200 is not limited to a beaker; it can be any container capable of holding the sample and providing a reaction site for the sample, such as an open bottle.

[0052] As one implementation method, refer to Figure 3 As shown, the clamping and conveying device 50 includes a clamping mechanism 51 and a third driving mechanism 52. The clamping mechanism 51 is used to clamp the electrode 300, and the third driving mechanism 52 is used to drive the movement of the clamped electrode 300. In specific applications, both the reaction site and the electrode site are located on the movement path of the clamping mechanism 51.

[0053] As one implementation method, refer to Figure 3 and Figure 4As shown, the third driving mechanism 52 comprises a horizontal rotation driving assembly 521 and a lifting driving assembly 522; the horizontal rotation driving assembly 521 is connected between the clamping mechanism 51 and the lifting driving assembly 522, and is used to drive the clamping mechanism 51 to perform a rotation movement, so that the clamping mechanism 51 reciprocates at least between the electrode position and the reaction position; the lifting driving assembly 522 is used to drive the horizontal rotation driving assembly 521 to perform a lifting movement, so as to drive the clamping mechanism 51 to perform a lifting movement. In specific applications, the electrode position and the reaction position are both located on a movement path of the clamping mechanism 51 during rotation, and the horizontal rotation driving assembly 521 is arranged to drive the clamping mechanism 51 to rotate, so that the clamping mechanism 51 can reciprocate between the electrode position and the reaction position, thereby achieving the conveying of the electrode 300 between the electrode position and the reaction position; the lifting driving assembly 522 is arranged to drive the clamping mechanism 51 to perform a lifting movement, so that the clamping mechanism 51 can be located at different heights.

[0054] As an embodiment, refer to Figures 4 to 6 As shown, the clamping mechanism 51 comprises a mounting seat 511, a clamping jaw assembly 512, a telescopic rod 513 and a fourth driving mechanism (not shown in the figure); the telescopic rod 513 is connected between the mounting seat 511 and the clamping jaw assembly 512, and comprises a first rod body 5131; the fourth driving mechanism is used to drive the first rod body 5131 to retract or extend between the mounting seat 511 and the clamping jaw assembly 512, so that the telescopic rod 513 is in a retracted state or a first extended state; the horizontal rotation driving assembly 521 is connected to the mounting seat 511, and is used to drive the mounting seat 511 to rotate, so as to drive the telescopic rod 513 and the clamping jaw assembly 512 to rotate, so that the clamping jaw assembly 512 reciprocates at least between the electrode position and the reaction position; the electrode position and the reaction position are both distributed on a first movement path 001 of the clamping jaw assembly 512 during rotation when the telescopic rod 513 is in the first extended state. The first movement path 001 is circular, and the electrode position and the reaction position are respectively located at two different points of the first movement path 001. In specific applications, a path of the clamping jaw assembly 512 during rotation when the telescopic rod 513 is in a retracted state is defined as a third movement path 003, and the clamping jaw assembly 512 will not be blocked by any other component in the electrochemical heavy metal detection equipment 100 when running along the third movement path 003.

[0055] As an embodiment, the first driving mechanism 30 is used to drive the first bearing component 11 to rotate, and each first fixed groove 111 is arranged along the circumferential direction of the rotation track of the first bearing component 11, so that each first fixed groove 111 rotates to the reaction position respectively. In a specific application, the first bearing component 11 is in a disc shape, the rotation center of the first bearing component 11 is arranged at the center of the disc, and the first fixed groove 111 is arranged along the circumferential direction of the first bearing component 11. The sample container 200 carried by the first fixed groove 111 is also arranged along the circumferential direction of the first bearing component 11. The movement path 004 of the first fixed groove 111 is a circle, the reaction position is located on the movement path 004 of the first fixed groove 111, and the reaction position is also located on the first movement path 001 of the jaw assembly 512. By arranging the reaction position at the point where the first movement path 001 and the movement path 004 of the first fixed groove 111 are tangent to each other, the reaction position is located on the first movement path 001 and the movement path 004 of the first fixed groove 111 at the same time. This arrangement has a simple structure and is easy to manufacture.

[0056] As an embodiment, the second driving mechanism 40 is used to drive the second bearing component 21 to rotate, and each second fixed groove 211 is arranged along the circumferential direction of the rotation track of the second bearing component 21, so that each second fixed groove 211 rotates to the electrode position respectively. In a specific application, the second bearing component 21 is in a disc shape, the rotation center of the second bearing component 21 is arranged at the center of the disc, and the second fixed groove 211 is arranged along the circumferential direction of the second bearing component 21. The electrode 300 carried by the second fixed groove 211 is also arranged along the circumferential direction of the second bearing component 21. The movement path 005 of the second fixed groove 211 is a circle, the electrode position is located on the movement path 005 of the second fixed groove 211, and the electrode position is also located on the first movement path 001 of the jaw assembly 512. By arranging the electrode position at the point where the first movement path 001 and the movement path 005 of the second fixed groove 211 are tangent to each other, the electrode position is located on the first movement path 001 and the movement path 005 of the second fixed groove 211 at the same time. This arrangement has a simple structure and is easy to manufacture.

[0057] It should be noted that the first bearing component 11 and the second bearing component 21 can also be arranged in a fan shape, an elliptical shape, or even a rectangular shape, as long as the first bearing component 11 and the second bearing component 21 can rotate, the first fixed groove 111 is arranged along the circumferential direction of the rotation center of the first bearing component 11, and the second fixed groove 211 is arranged along the circumferential direction of the rotation center of the second bearing component 21.

[0058] As an embodiment, with reference to Figure 5 , Figure 7 and Figure 8As shown, the second fixed slot 211 includes a slot main body 2111 and a slot passage 2112 communicating with the slot main body 2111, the slot main body 2111 is used for accommodating the electrode 300, and the slot passage 2112 is used for the electrode 300 to enter and exit the slot main body 2111; when the second fixed slot 211 moves to the electrode position, the slot main body 2111 is located at the electrode position, and the slot passage 2112 extends along the first movement path 001. Through this kind of setting mode, after the jaw assembly 512 clamps the electrode 300 located at the electrode position, it continues to run along the first movement path 001, drives the electrode 300 to run along the first movement path 001, so that the electrode 300 moves to the outside of the second fixed slot 211 through the slot passage 2112, thereby taking out the electrode 300 from the second fixed slot 211. In specific applications, the radial dimension of the slot main body 2111 is greater than the radial dimension of the slot passage 2112, so that the electrode 300 accommodated in the slot main body 2111 is not easy to fall off from the slot main body 2111 through the slot passage 2112. In this embodiment, the slot passage 2112 is arranged on the clockwise path of the jaw assembly 512, that is, the jaw assembly 512 transports the electrode 300 to the outside of the second fixed slot 211 through the slot passage 2112 by clockwise rotation; in specific applications, the slot passage 2112 can also be arranged on the counterclockwise path of the jaw assembly 512.

[0059] As an embodiment, referring to Figure 7 and Figure 8 As shown, the electrode 300 includes an electrode main body 301 and an elastic snap ring 302, the electrode main body 301 includes a conductor segment 3011, a sensitive segment 3012, and an inert segment 3013 arranged between the conductor segment 3011 and the sensitive segment 3012, the conductor segment 3011 is used for conducting electricity, the sensitive segment 3012 is used for extending into the sample, and the elastic snap ring 302 is arranged around the circumference of the electrode main body 301 and is arranged at the middle part of the inert segment 3013; the elastic snap ring 302 includes a first clamping part 3021 and a second clamping part 3022 connected to the first clamping part 3021, the radial dimension of the first clamping part 3021 is greater than the radial dimension of the slot main body 2111 and is arranged close to the conductor segment 3011, and the radial dimension of the second clamping part 3022 is less than or equal to the radial dimension of the slot main body 2111 and is arranged close to the sensitive segment 3012; when the electrode 300 is installed in the slot main body 2111, the first clamping part 3021 is carried above the slot wall of the slot main body 2111, and the second clamping part 3022 is arranged in the slot main body 2111.

[0060] As an embodiment, the working principle of the jaw assembly 512 for clamping the electrode 300 from the second fixed slot 211 is as follows:

[0061] The horizontal rotation driving assembly 521 drives the jaw assembly 512 to move to the electrode position and clamps the inert segment 3013 between the conductor segment 3011 and the first clamping part 3021;

[0062] The lifting driving assembly 522 drives the jaw assembly 512 to move upward so that the second clamping part 3022 is disengaged from the groove body 2111;

[0063] The horizontal rotation driving assembly 521 drives the jaw assembly 512 to rotate clockwise along the first movement path 001 so that the electrode 300 moves to the outside of the second fixed groove 211 through the groove passage 2112.

[0064] As an embodiment, referring to Figure 1 , Figure 2 , Figure 4 and Figure 9 , the electrochemical-based heavy metal detection device 100 further comprises an electrode positioning member 60 and a fifth driving mechanism 70; the electrode positioning member 60 has at least one clamping groove 61 for clamping and fixing the electrode 300, and the fifth driving mechanism 70 is used to drive the electrode positioning member 60 to move so that one of all the clamping grooves 61 moves to at least the reaction position. By setting the electrode positioning member 60, when the jaw assembly 512 transports the electrode 300 from the electrode position to the reaction position, the electrode 300 is installed on the electrode positioning member 60, so as to facilitate the detection of the sample.

[0065] As an embodiment, referring to Figure 2 and Figure 9As shown, the electrode positioning member 60 has at least three clamping grooves 61, each of which is used to clamp a fixed electrode 300. The fifth driving mechanism 70 includes a first driving assembly 71 and a second driving assembly 72, the first driving assembly 71 is used to drive the electrode positioning member 60 to move to a clamping position, so that all the clamping grooves 61 are arranged opposite to the slot of the first fixed groove 111 located at the reaction position. In this way, when the electrode positioning member 60 is located at the clamping position, the electrodes 300 clamped in the clamping grooves 61 can all extend into the sample container 200 located at the reaction position, which can meet the condition that multiple electrodes 300 are needed to detect the sample (for example, four electrodes are needed to clamp on the electrode positioning member 60 to detect the sample). In specific applications, the area of the electrode positioning member 60 is smaller than the area of the slot of the first fixed groove 111, when one of the first fixed grooves 111 is located at the reaction position, the electrode positioning member 60 located at the clamping position is opposite to part of the area of the slot of the first fixed groove 111, that is, in the vertical direction, the projection of the electrode positioning member 60 located at the clamping position falls within the projection of the slot of the first fixed groove 111 located at the reaction position; the sample container 200 is a beaker, in order to stably install the beaker in the first fixed groove 111, the shape of the first fixed groove 111 matches the external contour of the beaker, and the diameter of the slot of the first fixed groove 111 is close to the radial dimension of the beaker, so the electrode positioning member 60 located at the clamping position is opposite to part of the area of the beaker mouth in the first fixed groove 111 located at the reaction position, and all the electrodes 300 clamped on the electrode positioning member 60 can extend into the beaker. The second driving assembly 72 is used to drive the electrode positioning member 60 to rotate, and the at least three clamping grooves 61 are arranged along the circumferential direction of the rotation track of the electrode positioning member 60, so that each clamping groove 61 rotates to the reaction position when the electrode positioning member 60 is located at the clamping position. Specifically, the electrode positioning member 60 is disc-shaped, the rotation center of the electrode positioning member 60 is arranged at the center of the disc, and the clamping grooves 61 are arranged along the circumferential direction of the electrode positioning member 60. When the first driving assembly 71 drives the electrode positioning member 60 to move to the clamping position, the second driving assembly 72 drives the electrode positioning member 60 to rotate, so that the preset clamping groove 61 rotates to the reaction position. After the electrode 300 is transferred to the clamping groove 61 by the clamping jaw assembly 512, the second driving assembly 72 drives the electrode positioning member 60 to rotate again, so that the clamping groove 61 clamping the electrode 300 rotates out of the reaction position, and the next clamping groove 61 rotates to the reaction position. By repeating the above operations, all the electrodes 300 needed to detect the sample can be clamped and fixed on the electrode positioning member 60. In the embodiment, the number of clamping grooves 61 is three. It can be understood that in other embodiments, the number of clamping grooves 61 can be four or five or six, etc., and the number of clamping grooves 61 is not limited herein.

[0066] As an implementation, with reference to Figure 5 , Figure 7 andFigure 9 As shown in FIG. 6, each clamping groove 61 has a first opening 611, a second opening 612 and a third opening 613, the first opening 611 and the second opening 612 are oppositely arranged, and the third opening 613 is connected between the first opening 611 and the second opening 612, the third opening 613 is used for the electrode 300 to enter the clamping groove 61, and the first opening 611 and the second opening 612 are used for the electrode 300 installed in the clamping groove 61 to extend out of the clamping groove 61 in the axial direction. In this embodiment, when the clamping groove 61 is located at the reaction position, the clamping jaw assembly 512 is rotated clockwise to make the electrode 300 transfer to the clamping groove 61 through the third opening 613. Of course, as an alternative embodiment, when the clamping groove 61 is located at the reaction position, the clamping jaw assembly 512 is also possible to be rotated counterclockwise to make the electrode 300 transfer to the clamping groove 61 through the third opening 613.

[0067] As an embodiment, the working principle of the clamping jaw assembly 512 transferring the electrode 300 to the clamping groove 61 is as follows:

[0068] The horizontal rotation driving assembly 521 drives the clamping jaw assembly 512 clamping the electrode 300 to rotate clockwise along the first movement path 001 to the reaction position;

[0069] The conductor segment 3011 enters and clamps in the clamping groove 61 through the third opening 613 when the clamping jaw assembly 512 reaches the reaction position;

[0070] The clamping jaw assembly 512 releases the electrode 300;

[0071] The lifting driving assembly 522 drives the clamping jaw assembly 512 to move downward to below the electrode 300;

[0072] The horizontal rotation driving assembly 521 drives the clamping jaw assembly 512 to rotate counterclockwise along the first movement path 001 to move the clamping jaw assembly 512 away from the reaction position.

[0073] As an embodiment, referring to Figure 3 , Figure 8 and Figure 9 , the first driving assembly 71 includes a horizontal driving part 711 and a lifting driving part 712, the horizontal driving part 711 is used for driving the electrode positioning member 60 to move horizontally, and the lifting driving part 712 is used for driving the electrode positioning member 60 to move vertically. In specific applications, the horizontal driving part 711 drives the electrode positioning member 60 to move horizontally to the clamping position, and after the electrode 300 is transferred to the clamping groove 61 of the electrode positioning member 60, the lifting driving part 712 drives the electrode positioning member 60 to move towards the sample container 200 (that is, to move downward) to make the sensitive segment 3012 of the electrode 300 extend into the sample carried in the sample container 200.

[0074] In one implementation, the first drive assembly 71 is mounted at the rotation center of the first support component 11. The horizontal drive assembly 711 is connected between the lifting drive assembly 712 and the second drive assembly 72. The end of the second drive assembly 72 furthest from the horizontal drive assembly 711 is connected to the electrode positioning component 60. The horizontal drive assembly 711 drives the second drive assembly 72 to rotate, thereby causing the electrode positioning component 60 to rotate. The clamping position is located on the rotation path of the electrode positioning component 60. In specific applications, the horizontal drive assembly 711 drives the electrode positioning component 60 to revolve around the rotation center of the first support component 11, and the second drive assembly 72 drives the electrode positioning component 60 to rotate around its own rotation center. This configuration is simple, saves space, and is beneficial for the miniaturization of the equipment.

[0075] In one implementation, the first drive assembly 71 is also used to drive the electrode positioning member 60 from the clamping position to the clearance position. Thus, when the electrode positioning member 60 affects the operation of the gripper assembly 512, it can be moved to the clearance position to facilitate the smooth operation of the gripper assembly 512. Of course, in specific applications, as an alternative implementation, the first drive assembly 71 may not drive the electrode positioning member 60 to the clearance position. In this embodiment, when the electrode positioning member 60 affects the operation of the gripper assembly 512, the gripper assembly 512 can be rotated by keeping the telescopic rod 513 in a retracted state to avoid obstruction during operation.

[0076] As one implementation method, refer to Figures 1 to 4 , Figure 7 As shown, the second supporting component 21 also has multiple third fixing slots 212 for supporting reagent containers 400. The movement of the second supporting component 21 also moves the third fixing slots 212 containing the target reagent container 400 to the reagent position; the movement of the first supporting component 11 also moves the first fixing slot 111 containing the target sample container 200 to the reagent dispensing position; the electrochemical-based heavy metal detection device 100 also includes a sampling needle 80 located at the sampling needle position, a gripper assembly 512 for gripping the sampling needle 80, and a horizontal rotation drive assembly 521 for driving the gripper assembly 512 to move between the sampling needle position, the reagent dispensing position, and the reagent position. In some electrochemical-based heavy metal detection projects, it is necessary to add some reagents (such as hydrochloric acid) before the electrochemical reaction. This setting method can meet the requirement of adding reagents to the sample container 200 in some detection projects, thus expanding the application range of the electrochemical-based heavy metal detection device 100. In a specific application, the first driving mechanism 30 drives the target sample container 200 to the reagent addition position before moving to the reaction position. After adding the reagent to the target sample container 200, the first driving mechanism 30 drives the target sample container 200 from the reagent position to the reaction position.

[0077] In one embodiment, each third fixing groove 212 is arranged circumferentially along the rotation trajectory of the second supporting member 21. The rotation of the second supporting member 21 causes each third fixing groove 212 to rotate to the reagent position. Specifically, the third fixing grooves 212 are also arranged circumferentially along the second supporting member 21, and the reagent container 400 supported on the third fixing grooves 212 is also arranged circumferentially along the second supporting member 21. The movement path 006 of the third fixing grooves 212 is circular, and the reagent position is located on the movement path 006 of the third fixing grooves 212.

[0078] In one embodiment, each second fixing groove 211 has a first radial distance relative to the rotation center of the second supporting member 21, and each third fixing groove 212 has a second radial distance relative to the rotation center of the second supporting member 21, wherein the first radial distance is greater than the second radial distance. Thus, the second fixing groove 211 surrounds the outer ring of the disc-shaped second supporting member 21, and the third fixing groove 212 surrounds the inner ring of the disc-shaped second supporting member 21. The reagent container 400 supported in the third fixing groove 212 will not affect the gripper assembly 512's gripping and transporting of the electrode 300.

[0079] As one implementation method, refer to Figure 4 and Figure 10 As shown, the telescopic rod 513 also includes a second rod 5132 that can be retracted into the first rod 5131. The fourth drive mechanism is also used to drive the second rod 5132 to extend out of the first rod 5131, so that the telescopic rod 513 is in a second extended state where both the first rod 5131 and the second rod 5132 extend out between the mounting base 511 and the gripper assembly 512. The reagent position, reagent application position and sample needle position are all distributed on the second motion path 002 on which the gripper assembly 512 rotates when the telescopic rod 513 is in the second extended state. Specifically, the second movement path 002 is circular, with the reagent position, reagent application position, and sample dispensing needle position located at three different points on the second movement path 002. The reagent position is also located on the movement path 006 of the third fixing groove 212. By setting the reagent position at the point where the second movement path 002 and the movement path 006 of the third fixing groove 212 are tangent, the reagent position is simultaneously located on both the second movement path 002 and the movement path 006 of the third fixing groove 212. The reagent application position is also located on the movement path 004 of the first fixing groove 111. By setting the reagent application position at the point where the second movement path 002 and the movement path 004 of the first fixing groove 111 intersect, the reagent application position is simultaneously located on both the second movement path 002 and the movement path 004 of the first fixing groove 111. This configuration is simple in structure and easy to manufacture.

[0080] As one implementation method, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5and Figure 10 As shown in the figure, the electrochemistry-based heavy metal detection device 100 further comprises a cleaning device 90, the cleaning device 90 is provided with a first cleaning position and a second cleaning position; the horizontal rotary driving assembly 521 is further used for driving the jaw assembly 512 to move the electrode 300 to the first cleaning position, and driving the jaw assembly 512 to move the sample needle 80 to the second cleaning position, the first cleaning position is distributed on the first movement path 001, and the second cleaning position is distributed on the second movement path 002. In this way, after the electrode 300 or the sample needle 80 is used, the electrode 300 or the sample needle 80 can be cleaned, which is beneficial to the reuse of the electrode 300 or the sample needle 80. Of course, the electrode 300 can also be cleaned before the sample is detected after the device is started, so as to prevent the dust on the outer surface of the electrode 300 from affecting the accuracy of detection due to long-term non-use. In specific applications, the sample needle position and the second cleaning position are the same part, and after the sample needle 80 is used, the sample needle 80 can be directly placed in the second cleaning position of the cleaning device 90, without the need to be transferred to another sample needle position after the cleaning of the sample needle 80 is completed, which saves space and reduces operation steps. In the embodiment, the reaction position is located downstream of the electrode position when the jaw assembly 512 rotates clockwise, the first cleaning position is located downstream of the reaction position when the jaw assembly 512 rotates clockwise, the electrode positioning member 60 needs to be transported to the avoiding position when the electrode 300 is transported from the electrode position to the first cleaning position, so as to prevent the electrode positioning member 60 from affecting the movement of the electrode 300; the reagent adding position is located downstream of the reagent position when the jaw assembly 512 rotates clockwise, the second cleaning position is located downstream of the reagent adding position when the jaw assembly 512 rotates clockwise, and the sample needle 80 can be sequentially moved from the reagent position to the reagent adding position and then to the second cleaning position in a clockwise direction, and in this process, the electrode positioning member 60 also needs to be moved to the avoiding position to prevent affecting the movement of the sample needle 80.

[0081] As an implementation manner, referring to Figure 2 As shown in the figure, the cleaning device 90 comprises a cleaning box 91 for carrying cleaning liquid, the cleaning box 91 is provided with a first insertion hole 911 and a second insertion hole (not shown in the figure), the first insertion hole 911 is used for the electrode 300 to pass through, so that the cleaning liquid in the cleaning box 91 can clean the electrode 300, and the second insertion hole is used for the sample needle 80 to pass through, so that the cleaning liquid in the cleaning box 91 can clean the sample needle 80; the first cleaning position is formed at the first insertion hole 911, and the second cleaning position is formed at the second insertion hole. In specific applications, the cleaning liquid can be water or a cleaning agent.

[0082] Further, the embodiment also provides a control method of the electrochemistry-based heavy metal detection device 100, comprising:

[0083] Step 1, obtaining test configuration data, the test configuration data including electrode information, sample container information, to-be-tested sample detection order information, sample required electrode type and quantity information;

[0084] Step 2, according to the sample container information and the to-be-tested sample detection order information, controlling the first driving mechanism 30 to drive the first bearing component 11 to move, and transporting the first fixed groove 111 containing the target sample container 200 to the reaction position;

[0085] Step 3, according to the electrode information and the sample required electrode type and quantity information, controlling the second driving mechanism 40 to drive the second bearing component 21 to move, and transporting the second fixed groove 211 containing the target electrode 300 to the electrode position;

[0086] Step 4, controlling the clamping and conveying device 50 to clamp the electrode 300 from the electrode position and conveying the clamped electrode 300 to the reaction position;

[0087] Step 5, according to the sample required electrode quantity information, repeating step 4;

[0088] Step 6, after the electrochemical reaction is completed, controlling the clamping and conveying device 50 to clamp the electrode 300 from the reaction position and conveying the electrode 300 to the electrode position;

[0089] Step 7, according to the to-be-tested sample detection order information, repeating steps 2 to 6.

[0090] The electrode information includes the type of the electrode, such as an auxiliary electrode, a reference electrode or a working electrode; the sample container information includes the sample carried in the sample container and the number of the sample; the to-be-tested sample detection order information includes the detection order of multiple samples, such as the detection order of three samples being No. 1, No. 2 and No. 3, or being No. 1, No. 3 and No. 2; and the sample required electrode type and quantity information includes the electrode type required for detecting the sample and the quantity of different types of electrodes, such as 2 auxiliary electrodes, 1 reference electrode and 1 working electrode required.

[0091] The method provided by the embodiment can automatically detect heavy metal ions based on electrochemistry for a single sample or multiple samples, and improves the automatic performance of detecting heavy metal ions based on electrochemistry for the sample.

[0092] As an implementation, the clamping conveying device 50 comprises a mounting base 511, a clamping jaw assembly 512, a telescopic rod 513, a third driving mechanism 52 and a fourth driving mechanism; the telescopic rod 513 is connected between the mounting base 511 and the clamping jaw assembly 512, and comprises a first rod body 5131 and a second rod body 5132; the fourth driving mechanism is used to drive the telescopic rod 513 to be telescopic, so that the telescopic rod 513 is in a retracted state in which the first rod body 5131 and the second rod body 5132 are both retracted between the mounting base 511 and the clamping jaw assembly 512, a first extended state in which the first rod body 5131 is extended between the mounting base 511 and the clamping jaw assembly 512, or a second extended state in which the first rod body 5131 and the second rod body 5132 are both extended between the mounting base 511 and the clamping jaw assembly 512; the third driving mechanism 52 is connected to the mounting base 511 and is used to drive the mounting base 511 to rotate to drive the telescopic rod 513 and the clamping jaw assembly 512 to rotate, so that the clamping jaw assembly 512 moves between at least the electrode position and the reaction position when the telescopic rod 513 is in the first extended state; after step 1 and before step 2, the method further comprises:

[0093] Step 1-1, controlling the fourth driving mechanism to drive the telescopic rod 513 to be in the retracted state, and controlling the third driving mechanism 52 to drive the clamping jaw assembly 512 to move to a first initial position;

[0094] Step 1-2, controlling the fourth driving mechanism to drive the telescopic rod 513 to be in the first extended state, so that the clamping jaw assembly 512 moves to a second initial position.

[0095] By moving the clamping jaw assembly 512 to the second initial position, the subsequent target sample container 200 moving to the reaction position and the target electrode 300 moving to the electrode position are not blocked, and the target electrode 300 can be quickly transferred when being transferred. In specific applications, in step 1-1, the third driving mechanism 52 drives the clamping jaw assembly 512 to move to the first initial position in the shortest path, so as to improve the movement efficiency of the clamping jaw assembly 512. For example, when the clamping jaw assembly 512 can quickly reach the first initial position by clockwise rotation, the third driving mechanism 52 is controlled to drive the clamping jaw assembly 512 to move clockwise to the first initial position; when the clamping jaw assembly 512 can quickly reach the first initial position by counterclockwise rotation, the third driving mechanism 52 is controlled to drive the clamping jaw assembly 512 to move counterclockwise to the first initial position.

[0096] As an implementation, the second bearing component 21 further has a plurality of third fixed grooves 212 for bearing the reagent container 400, and the movement of the second bearing component 21 further moves the third fixed groove 212 containing the target reagent container 400 to the reagent position; the movement of the first bearing component 11 further moves the first fixed groove 111 containing the target sample container 200 to the reagent adding position before moving to the reaction position; the electrochemical-based heavy metal detection device 100 further comprises a sample adding needle 80, and the gripper assembly 512 is further used for clamping the sample adding needle 80; the third driving mechanism 52 drives the rotation of the gripper assembly 512, and further moves the gripper assembly 512 between the sample adding needle position, the reagent adding position and the reagent position when the telescopic rod 513 is in the second extended state; the test configuration data further comprises sample reagent adding information, and after step 1 and before step 1-1, the method further comprises:

[0097] Step 1-0, according to the sample reagent adding information, it is judged whether the reagent is added to the target sample; if yes, the following steps are executed:

[0098] Step 1-0-1, control the fourth driving mechanism to drive the telescopic rod 513 to be in the retracted state, and control the third driving mechanism 52 to drive the gripper assembly 512 to move to the first initial position;

[0099] Step 1-0-2, control the fourth driving mechanism to drive the telescopic rod 513 to be in the second extended state, so that the gripper assembly 512 moves to the third initial position;

[0100] Step 1-0-3, according to the sample container information and the detection order information of the to-be-detected sample, control the first driving mechanism 30 to drive the first bearing component 11 to move, and transport the first fixed groove 111 containing the target sample container 200 to the reagent adding position;

[0101] Step 1-0-4, control the second driving mechanism 40 to drive the second bearing component 21 to move, so that the third fixed groove 212 containing the target reagent container 400 is transported to the reagent position;

[0102] Step 1-0-5, control the gripper assembly 512 to clamp the sample adding needle 80 from the sample adding needle position and transport the clamped sample adding needle 80 to the reagent position;

[0103] Step 1-0-6, after the sample adding needle 80 absorbs the reagent, control the gripper assembly 512 to transport the sample adding needle 80 containing the reagent to the reagent adding position;

[0104] Step 1-0-7, after the sample adding needle 80 releases the reagent, control the gripper assembly 512 to transport the sample adding needle 80 back to the sample adding needle position.

[0105] The reagent is added to the sample container 200 through the above operation steps. In a specific application, when it is determined that the reagent is not to be added to the target sample, step 1-1 is directly performed.

[0106] As an embodiment, the electrochemical heavy metal detection device 100 further comprises a cleaning device 90, the cleaning device 90 having a first cleaning position; after step 6 and before step 7, the method further comprises: step 6-1, controlling the gripper assembly 512 to pick up the electrode 300 from the electrode position and transport the picked-up electrode 300 to the first cleaning position. In this way, the electrode 300 is cleaned after being used, which is conducive to being used again for detection of the next sample.

[0107] As an embodiment, the electrochemical heavy metal detection device 100 further comprises a cleaning device 90, the cleaning device 90 having a second cleaning position; after the reagent is released by the sample adding needle 80, before the sample adding needle 80 is transported back to the sample adding needle position by the gripper assembly 512, the method further comprises: controlling the gripper assembly 512 to transport the sample adding needle 80 to the second cleaning position. In this way, the sample adding needle 80 is cleaned after being used, which is conducive to being used again for detection of the next sample.

[0108] As an embodiment, the electrochemical heavy metal detection device 100 further comprises an electrode positioning member 60 and a fifth driving mechanism 70; the electrode positioning member 60 has at least one clamping groove 61 for clamping and fixing the electrode 300, and the fifth driving mechanism 70 is used to drive the electrode positioning member 60 to move; after step 3 and before step 4, the method further comprises: step 3-1, controlling the fifth driving mechanism 70 to drive the electrode positioning member 60 to move so that one of the clamping grooves 61 moves to the reaction position. In this way, when the gripper assembly 512 transports the electrode 300 to the reaction position, the electrode 300 can be directly transferred into the clamping groove 61.

[0109] As an embodiment, after step 6 and before step 7, the method further comprises: step 6-2, controlling the fifth driving mechanism 70 to drive the electrode positioning member 60 to move to the avoiding position. In a specific application, step 6-1 is performed after step 6-2 to prevent the electrode positioning member 60 from blocking the movement of the electrode 300. Moreover, in the operation of adding the reagent to the sample, step 6-2 also needs to be completed before the reagent is added to the sample.

[0110] As an implementation, the electrode positioning member 60 has at least three clamping grooves 61, each of which is used for clamping a fixed electrode 300; the fifth driving mechanism 70 comprises a first driving assembly 71 and a second driving assembly 72; the first driving assembly 71 is used for driving the electrode positioning member 60 to move to a clamping position, so that all the clamping grooves 61 are arranged opposite to the slot of the first fixed groove 111 at the reaction position; the second driving assembly 72 is used for driving the electrode positioning member 60 to rotate, and the at least three clamping grooves 61 are arranged along the rotation track of the electrode positioning member 60, so that each clamping groove 61 is rotated to the reaction position when the electrode positioning member 60 is at the clamping position; step 3-1 comprises:

[0111] Step 3-1-1, control the first driving assembly 71 to drive the electrode positioning member 60 to move to the clamping position;

[0112] Step 3-1-2, control the second driving assembly 72 to drive the electrode positioning member 60 to rotate, so that one of the clamping grooves 61 rotates to the reaction position.

[0113] As an implementation, the clamping and conveying device 50 comprises a clamping mechanism 51 and a third driving mechanism 52, the clamping mechanism 51 is used for clamping the electrode 300; the third driving mechanism 52 comprises a horizontal rotation driving assembly 521 and a lifting driving assembly 522; the horizontal rotation driving assembly 521 is connected between the clamping mechanism 51 and the lifting driving assembly 522, and is used for driving the clamping mechanism 51 to rotate, so that the clamping mechanism 51 reciprocates at least between the electrode position and the reaction position; the lifting driving assembly 522 is used for driving the horizontal rotation driving assembly 521 to lift, so as to drive the clamping mechanism 51 to lift; the electrode 300 comprises an electrode body 301, the electrode body 301 has a conductor segment 3011, a sensitive segment 3012, and an inert segment 3013 arranged between the conductor segment 3011 and the sensitive segment 3012, the conductor segment 3011 is used for being clamped by the clamping groove 61, the sensitive segment 3012 is used for extending into the sample container 200, and the inert segment 3013 is used for being clamped by the clamping mechanism 51;

[0114] Step 4 comprises:

[0115] Step 4-1, control the horizontal rotation driving assembly 521 to drive the clamping mechanism 51 to rotate to the electrode position in the first horizontal space along the horizontal direction;

[0116] Step 4-2, control the lifting driving assembly 522 to drive the clamping mechanism 51 to move to the second horizontal space in the direction close to the second bearing member 21 and clamp the inert segment 3013;

[0117] Step 4-3, control the lifting driving mechanism to drive the clamping mechanism 51 to return to the first horizontal space in the direction away from the second bearing member 21;

[0118] Step 4-4, control the horizontal rotation driving assembly 521 to drive the clamping mechanism 51 to rotate in the horizontal direction in the first horizontal space to the reaction position.

[0119] wherein the first horizontal space and the second horizontal space are two spaces without intersection in the vertical direction. In a specific application, the first horizontal space is higher than the second horizontal space.

[0120] Further, the embodiment also provides a computer readable storage medium, including a program, the program can be executed by a processor to implement the control method.

[0121] Those skilled in the art can understand that all or part of the functions of the above method can be realized by hardware or by a computer program. When all or part of the functions of the above embodiment are realized by a computer program, the program can be stored in a computer readable storage medium, which can include read-only memory, random access memory, magnetic disk, optical disk, hard disk, etc. The above functions are realized by executing the program by a computer. For example, the program is stored in the memory of the device, and when the program in the memory is executed by the processor, all or part of the above functions are realized. In addition, when all or part of the functions of the above embodiment are realized by a computer program, the program can also be stored in a server, another computer, a storage medium such as a disk, an optical disk, a flash disk or a mobile hard disk, and is downloaded or copied into the memory of the local device, or the system of the local device is updated, and when the program in the memory is executed by the processor, all or part of the functions of the above embodiment are realized.

[0122] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. An electrochemical-based heavy metal detection device, characterized in that, The application relates to an electrochemical-based heavy metal detection device, which comprises: a first bearing mechanism comprising a first bearing component with a plurality of first fixed slots for bearing sample containers; a second bearing mechanism comprising a second bearing component with a plurality of second fixed slots for bearing electrodes; a first driving mechanism for driving the first bearing component to move so as to move the first fixed slot containing a target sample container to a reaction position; a second driving mechanism for driving the second bearing component to move so as to move the second fixed slot containing a target electrode to an electrode position; a clamping conveying device for clamping and conveying the electrode at least between the electrode position and the reaction position; the clamping conveying device comprises a clamping mechanism and a third driving mechanism, the clamping mechanism is used for clamping the electrode; the third driving mechanism comprises a horizontal rotation driving assembly and a lifting driving assembly; the horizontal rotation driving assembly is connected between the clamping mechanism and the lifting driving assembly, and is used for driving the clamping mechanism to rotate so as to move the clamping mechanism at least between the electrode position and the reaction position; the lifting driving assembly is used for driving the horizontal rotation driving assembly to lift so as to drive the clamping mechanism to lift; the clamping mechanism comprises a mounting base, a clamping jaw assembly, an extension rod and a fourth driving mechanism; the extension rod is connected between the mounting base and the clamping jaw assembly, and comprises a first rod body; the fourth driving mechanism is used for driving the first rod body to contract or extend between the mounting base and the clamping jaw assembly, so that the extension rod is in a contracted state or a first extended state; the horizontal rotation driving assembly is connected to the mounting base, and is used for driving the mounting base to rotate so as to drive the extension rod and the clamping jaw assembly to rotate, so that the clamping jaw assembly moves at least between the electrode position and the reaction position; the electrode position and the reaction position are distributed on a first movement path of the clamping jaw assembly rotating when the extension rod is in the first extended state; the first driving mechanism is used for driving the first bearing component to rotate, and each first fixed slot is arranged in a circle along a rotation track of the first bearing component, so that each first fixed slot rotates to the reaction position respectively; the second driving mechanism is used for driving the second bearing component to rotate, and each second fixed slot is arranged in a circle along a rotation track of the second bearing component, so that each second fixed slot rotates to the electrode position respectively; the electrochemical-based heavy metal detection device further comprises an electrode positioning member and a fifth driving mechanism; the electrode positioning member has at least one clamping slot for clamping and fixing the electrode, and the fifth driving mechanism is used for driving the electrode positioning member to move so as to move one of all the clamping slots to at least the reaction position.

2. The electrochemical-based heavy metal detection device of claim 1, wherein, The second fixed groove comprises a groove main body for accommodating the electrode and a groove channel for the electrode to enter or exit the groove main body; When the second fixed groove moves to the electrode position, the groove main body is located at the electrode position, and the groove channel extends along the first movement path.

3. The electrochemical-based heavy metal detection device of claim 1, wherein, The second bearing component further comprises a plurality of third fixed grooves for bearing reagent containers, and movement of the second bearing component further moves the third fixed groove accommodating a target reagent container to a reagent position; Movement of the first bearing component further moves the first fixed groove accommodating a target sample container to a reagent adding position; The electrochemical-based heavy metal detection device further comprises a sample adding needle arranged at a sample adding needle position, and the gripper assembly is further used for clamping the sample adding needle, and the horizontal rotation driving assembly is further used for driving the gripper assembly to move between the sample adding needle position, the reagent adding position and the reagent position.

4. The electrochemical-based heavy metal detection device of claim 3, wherein, The telescopic rod further comprises a second rod body which is retractable into the first rod body, and the fourth driving mechanism is further used for driving the second rod body to extend out of the first rod body so that the telescopic rod is in a second extended state in which the first rod body and the second rod body both extend out of the mounting base and the gripper assembly; The reagent position, the reagent adding position and the sample adding needle position are all distributed on a second movement path along which the gripper assembly rotates when the telescopic rod is in the second extended state.

5. The electrochemical-based heavy metal detection device of claim 4, wherein, The electrochemical-based heavy metal detection device further comprises a cleaning device which has a first cleaning position and a second cleaning position; The horizontal rotation driving assembly is further used for driving the gripper assembly to move the electrode to the first cleaning position and driving the gripper assembly to move the sample adding needle to the second cleaning position, the first cleaning position being distributed on the first movement path, and the second cleaning position being distributed on the second movement path.

6. The electrochemical-based heavy metal detection device of claim 3, wherein, Each of the third fixed grooves is circumferentially arranged along a rotation track of the second bearing component so that each of the third fixed grooves is rotated to the reagent position, each of the second fixed grooves has a first radial distance relative to a rotation center of the second bearing component, and each of the third fixed grooves has a second radial distance relative to the rotation center of the second bearing component, the first radial distance being greater than the second radial distance.

7. The electrochemical-based heavy metal detection device of claim 1, wherein, The electrode positioning member has at least three clamping grooves, each of which is used for clamping one of the electrodes; The fifth driving mechanism comprises a first driving assembly and a second driving assembly; the first driving assembly is used for driving the electrode positioning member to move to a clamping position so that all the clamping grooves are arranged opposite to the groove opening of the first fixed groove located at the reaction position; and the second driving assembly is used for driving the electrode positioning member to rotate, and the at least three clamping grooves are circumferentially arranged along a rotation track of the electrode positioning member so that each of the clamping grooves is rotated to the reaction position when the electrode positioning member is located at the clamping position.

8. The electrochemical-based heavy metal detection device of claim 7, wherein, The first driving assembly is further used for driving the electrode positioning member to move from the clamping position to a avoiding position; and / or, The first driving assembly comprises a horizontal driving component and a lifting driving component, the horizontal driving component is used to drive the electrode positioning member to move horizontally, and the lifting driving component is used to drive the electrode positioning member to move up and down.

9. The electrochemical-based heavy metal detection device of claim 1, wherein, Each of the clamping grooves has a first opening, a second opening and a third opening, the first opening and the second opening are oppositely arranged, the third opening is connected between the first opening and the second opening, the third opening is used for the electrode to enter the clamping groove, and the first opening and the second opening are used for the electrode installed in the clamping groove to axially extend out of the clamping groove.

10. A method of controlling an electrochemical-based heavy metal detection device as claimed in any one of claims 1 to 9, characterized in that, Comprise: Step 1, obtaining test configuration data, the test configuration data comprising electrode information, sample container information, to-be-tested sample detection sequence information, sample required electrode type and quantity information; Step 2, according to the sample container information and the detection sequence information of the to-be-tested sample, controlling the first driving mechanism to drive the first bearing component to move, and transporting the first fixed groove containing the target sample container to the reaction position; Step 3, according to the electrode information and the sample required electrode type and quantity information, controlling the second driving mechanism to drive the second bearing component to move, and transporting the second fixed groove containing the target electrode to the electrode position; Step 4, controlling the clamping and transporting device to clamp the electrode from the electrode position and transport the clamped electrode to the reaction position; Step 5, according to the sample required electrode quantity information, repeating step 4; Step 6, after the electrochemical reaction is completed, controlling the clamping and transporting device to clamp the electrode from the reaction position and transport the electrode to the electrode position; Step 7, according to the quantity and detection sequence information of the to-be-tested sample, repeating steps 2 to 6.

11. The method of claim 10, wherein, The clamping and transporting device comprises a mounting seat, a clamping jaw assembly, a telescopic rod, a third driving mechanism and a fourth driving mechanism; The telescopic rod is connected between the mounting seat and the clamping jaw assembly, comprises a first rod body and a second rod body, and the fourth driving mechanism is used to drive the telescopic rod to be telescopic, so that the telescopic rod is in a retracted state that the first rod body and the second rod body are both retracted between the mounting seat and the clamping jaw assembly, a first extended state that the first rod body is extended between the mounting seat and the clamping jaw assembly, or a second extended state that the first rod body and the second rod body are both extended between the mounting seat and the clamping jaw assembly; The third driving mechanism is connected to the mounting seat and is used to at least drive the mounting seat to rotate to drive the telescopic rod and the clamping jaw assembly to rotate, so that the clamping jaw assembly moves between at least the electrode position and the reaction position when the telescopic rod is in the first extended state; After the step 1 and before the step 2, the method further comprises: Step 1-1, controlling the fourth driving mechanism to drive the telescopic rod to be in the retracted state, and controlling the third driving mechanism to drive the clamping jaw assembly to move to a first initial position; Step 1-2, controlling the fourth driving mechanism to drive the telescopic rod to be in the first extended state, so that the clamping jaw assembly moves to a second initial position.

12. The method of claim 11, wherein, The second bearing component also has a plurality of third fixed grooves for bearing reagent containers, and movement of the second bearing component also moves the third fixed groove containing the target reagent container to the reagent position; Movement of the first bearing component also moves the first fixed groove containing the target sample container to the reagent adding position before moving to the reaction position; The electrochemical-based heavy metal detection device also includes a sample adding needle, and the gripper assembly is also used to clamp the sample adding needle; The third driving mechanism drives the gripper assembly to rotate and also moves the gripper assembly between the sample adding needle position, the reagent adding position, and the reagent position when the telescopic rod is in the second extended state; The test configuration data also includes sample reagent adding information, and after the step 1 and before the step 1-1, the method further includes: Step 1-0, according to the sample reagent adding information, determining whether to add reagent to the target sample; if yes, the following steps are executed: Step 1-0-1, controlling the fourth driving mechanism to drive the telescopic rod to be in the retracted state, and controlling the third driving mechanism to drive the gripper assembly to move to the first initial position; Step 1-0-2, controlling the fourth driving mechanism to drive the telescopic rod to be in the second extended state, so that the gripper assembly moves to the third initial position; Step 1-0-3, according to the sample container information and the detection order information of the sample to be detected, controlling the first driving mechanism to drive the first bearing component to move, so as to transport the first fixed groove containing the target sample container to the reagent adding position; Step 1-0-4, controlling the second driving mechanism to drive the second bearing component to move, so as to transport the third fixed groove containing the target reagent container to the reagent position; Step 1-0-5, controlling the gripper assembly to clamp the sample adding needle from the sample adding needle position and transport the clamped sample adding needle to the reagent position; Step 1-0-6, after the sample adding needle sucks the reagent, controlling the gripper assembly to transport the sample adding needle containing the reagent to the reagent adding position; Step 1-0-7, after the sample adding needle releases the reagent, controlling the gripper assembly to transport the sample adding needle back to the sample adding needle position.

13. The method of claim 11 or 12, wherein, The electrochemical-based heavy metal detection device also includes a cleaning device, and the cleaning device has a first cleaning position; After the step 6 and before the step 7, the method further includes: Step 6-1, controlling the gripper assembly to clamp the electrode from the electrode position and transport the clamped electrode to the first cleaning position.

14. The method of claim 12, wherein, The electrochemical-based heavy metal detection device also includes a cleaning device, and the cleaning device has a second cleaning position; After the sample adding needle releases the reagent, before the gripper assembly is controlled to transport the sample adding needle back to the sample adding needle position, the method further includes the step of: controlling the gripper assembly to transport the sample adding needle to the second cleaning position.

15. The method of claim 10, wherein, The electrochemistry-based heavy metal detection device further comprises an electrode positioning member and a fifth driving mechanism; the electrode positioning member has at least one clamping groove for clamping and fixing the electrode, and the fifth driving mechanism is used to drive the electrode positioning member to move; After the step 3 and before the step 4, the method further comprises: Step 3-1, controlling the fifth driving mechanism to drive the electrode positioning member to move so that one of the clamping grooves in all the clamping grooves moves to the reaction position.

16. The method of claim 15, wherein, After the step 6 and before the step 7, the method further comprises: Step 6-2, controlling the fifth driving mechanism to drive the electrode positioning member to move to an avoiding position.

17. The method of claim 15, wherein, The electrode positioning member has at least three clamping grooves, each of which is used to clamp and fix one of the electrodes; the fifth driving mechanism comprises a first driving assembly and a second driving assembly; the first driving assembly is used to drive the electrode positioning member to move to a clamping position, so that all the clamping grooves are arranged opposite to the slot opening of the first fixed groove located at the reaction position; the second driving assembly is used to drive the electrode positioning member to rotate, and the at least three clamping grooves are arranged in a circle along the rotation track of the electrode positioning member, so that each of the clamping grooves is rotated to the reaction position when the electrode positioning member is located at the clamping position; The step 3-1 comprises: Step 3-1-1, controlling the first driving assembly to drive the electrode positioning member to move to the clamping position; Step 3-1-2, controlling the second driving assembly to drive the electrode positioning member to rotate, so that one of the clamping grooves in all the clamping grooves is rotated to the reaction position.

18. The method of claim 15, wherein, The clamping and conveying device comprises a clamping mechanism and a third driving mechanism, and the clamping mechanism is used to clamp the electrode; The third driving mechanism comprises a horizontal rotation driving assembly and a lifting driving assembly; the horizontal rotation driving assembly is connected between the clamping mechanism and the lifting driving assembly, and is used to drive the clamping mechanism to rotate, so that the clamping mechanism reciprocates at least between the electrode position and the reaction position; the lifting driving assembly is used to drive the horizontal rotation driving assembly to lift, so as to drive the clamping mechanism to lift; The electrode comprises an electrode main body, the electrode main body has a conductor segment, a sensitive segment and an inert segment arranged between the conductor segment and the sensitive segment, the conductor segment is used for clamping by the clamping groove, the sensitive segment is used to extend into the sample container, and the inert segment is used for clamping by the clamping mechanism; The step 4 comprises: Step 4-1, controlling the horizontal rotation driving assembly to drive the clamping mechanism to rotate in a horizontal direction in a first horizontal space to the electrode position; Step 4-2, controlling the lifting driving assembly to drive the clamping mechanism to move towards the second bearing component to a second horizontal space and clamp the inert segment; Step 4-3, controlling the lifting driving assembly to drive the clamping mechanism to return to the first horizontal space away from the second bearing component; Step 4-4, control the horizontal rotation driving assembly to drive the clamping mechanism to rotate in a horizontal direction in the first horizontal space to the reaction position.

19. A computer-readable storage medium, characterized in that, comprising program capable of being executed by a processor to implement the control method as claimed in any one of claims 10 to 18.

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